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Sensors / Detectors: Rotation Monitors
Sensors / Detectors -- Main Page
Last Updated on:
Friday, October 16, 2009 03:42 AM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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AN-162: LM2907 Tachometer/Speed Switch Building Block Applications - National
Semiconductor Application Note (app note added 2/06) |
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Bi-Directional Motor Speed Regulator - 02/05/2004 EDN-Design Ideas In low-noise
analog circuits, a high-gain amplifier serves at input to increase SNR. The input
signal level determines input-stage gain; low-level signals require highest gain. It
is also standard practice in low-noise analog-signal processing to make circuit's
bandwidth as narrow as possible to pass only useful input-signal spectrum. Designed
by Andrew R. Morris (added 6/06) |
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Car speed detection device - Door lock is easy to forget. Even if it does not lock
there is seldom case the door opens during travelling. Even with, when you are
getting a child, the child plays and may open the door..(added 04/05/06) |
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Circuit for measuring motor speed uses low-cost components - (Design Ideas - EDN,
11/08/2007) A microcontroller-based circuit provides both an LCD readout and an
analog motor-speed output. (electronic design idea added12/07) |
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Circuit Measures Diesel's Rotations Per Minute - 03/04/99 EDN-Design Ideas /
(added 8/03) You may find it useful to measure a diesel engine's rotations per minute
to accurately adjust the idling or to compare the motor's speed under hot and cold
conditions, for example. Not all cars or trucks come with a tachometer. The scheme in
Figures 1 and 2 allows.... |
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Combination Tachometer, Thermometer, and Counter - Inspired by the need to measure
dc motor speed and detect overheating, this 68HC908KX8 microcontroller-based circuit
displays various statistics on six-digit, eight-segment, numeric LEDs. See movies of a
thermistor in action as well as a reflective or interrupt-based photosensor counting.
(project added 11/06) |
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Digital Engine/Race Computer Board - The objective of this project is to design a
high speed digital engine tachometer. This requires the design and development of a
hardware and software solution to monitor the status of an engine in real time. In
addition, information relating to the overall health and systems of the vehicle can be
displayed. (added 10/05) |
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Engine/Race Computer Board - The objective of this project is to design a high
speed engine tachometer. This requires the design and development of a hardware and
software solution to monitor the status of an engine in real time. In addition,
information relating to the overall health and systems of the vehicle can be
displayed. (added 10/05) |
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LED Bargraph Optical Tachometer - For the electric R/C enthusiast, a tachometer
can be a very useful piece of equipment. When I first built this tach back in 1995, it
was essential, as there were very few off-the-shelf electric R/C power systems that
just worked....(design idea added 08/08/08) |
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Lego Mindstorms Double Rotation Sensor - (circuit / schematic design added 6/06) |
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LM2907 Tachometer/Speed Switch Building Block Applications - National
Semiconductor Application Note (app note added 2/06) |
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Optical Tachometer Provides BiDirectional Info - 05/21/98 EDN-Design Ideas /
(added 3/03) |
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PC-Based DC Motor Speed Controller - (circuit / schematic design added 6/06) |
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Programming the Automatic Fan Speed Control Loop - AN-613 Analog Devices
Application Note (app note added 6/06) |
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Simple Circuit Measures Diesel's Rotations Per Minute - 03/04/99 EDN-Design Ideas
/ (added 8/03) You may find it useful to measure a diesel engine's rotations per
minute to accurately adjust the idling or to compare the motor's speed under hot and
cold conditions, for example. Not all cars or trucks come with a tachometer. The
scheme in Figures 1 and 2 allows you to measure..... |
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Speed Limit Alarm - (circuit added 9/04) |
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Tachometer Circuit - A simple tachometer circuit using one NPN transistor.
(12/04/2007) |
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Tachometer Demodulator has Fast Response Time - 12/(07/95 EDN-Design Ideas /
(added 8/03) When a tachometer is a critical part of overspeed-shutdown circuitry, the
response time of conventional demodulators may be too long. The circuit in the block
diagram in Figure 1 provides updated speed data. The circuit provides corrections for
variations in excitation amplitude and frequency at every excitation half-cycle. The
circuit is independent of processors and, therefore, immune to softwareand bus-related
failures.... |
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Tachometer for Bikes (circuit) - Here are some instructions how to connect the
Tachometer version II to a single cylinder. (design added 3/07) |
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Tachometer/RPM - Easy to build using only a few components. With some
modifications, it can be used in an automovil. This Tachometer uses a PIC
16F628.(design added 06/04) |
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Tachometer/RPM II - This is an improved version of the Tachometer created
specially to measure up to 9,999 RPM. Uses a PIC 16F628. (added schematic 04/06) |
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Versatile Digital Speedometer uses Few Components - 05/12/05 EDN Design Ideas /
(added 6/06) Microcontroller, display, and sensor form digital speed readout. |
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Wireless Auto Tachometer (Aaron Cake) - (electronic schematic / circuit added
04/03/02) |
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